Spring, Cup, Lock Washer, Full Washers, Form A
Steel, TPE, Nylon, Brass, Stainless Steel
28 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
3.2 mm, 2.1 mm, 21 mm, 5.36 mm, 6.5 mm
2 mm, 1.2 mm, 1.8 mm, 3.5 mm, 0.28 mm
M24, M16, M5, M5 (Form A), M20
ASME B18.22.1 ASTM
F844, DIN 7603, ASME B18.21.1, BS 4320, BS 4320B